Commit Graph

97728 Commits

Author SHA1 Message Date
Thomas Huth
407634970d tests/qemu-iotests/264: Allow up to 5s for the BLOCK_JOB_CANCEL event to arrive
It is possible to hit the assertTrue(delta_t < 2.0) on very loaded
systems. Increase the value to 5.0 to ease the situation a little bit.

Message-Id: <20220802123101.430757-1-thuth@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:51:35 +02:00
Pavel Dovgalyuk
c05a88c6b2 tests/avocado: fix replay-linux test
Last line of the test is missing by accident.
This patch fixes the script.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <165943656662.362178.2086588841425038338.stgit@pasha-ThinkPad-X280>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:51:35 +02:00
Thomas Huth
c3dd58ba6e pc-bios/s390-ccw: Update the s390-ccw.img with the block size fix
The new binary now gets the block size of virtio-blk devices right.

Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 18:22:35 +02:00
Thomas Huth
393296de19 pc-bios/s390-ccw: Fix booting with logical block size < physical block size
For accessing single blocks during boot, it's the logical block size that
matters. (Physical block sizes are rather interesting e.g. for creating
file systems with the correct alignment for speed reasons etc.).
So the s390-ccw bios has to use the logical block size for calculating
sector numbers during the boot phase, the "physical_block_exp" shift
value must not be taken into account. This change fixes the boot process
when the guest hast been installed on a disk where the logical block size
differs from the physical one, e.g. if the guest has been installed
like this:

 qemu-system-s390x -nographic -accel kvm -m 2G \
  -drive if=none,id=d1,file=fedora.iso,format=raw,media=cdrom \
  -device virtio-scsi -device scsi-cd,drive=d1 \
  -drive if=none,id=d2,file=test.qcow2,format=qcow2
  -device virtio-blk,drive=d2,physical_block_size=4096,logical_block_size=512

Linux correctly uses the logical block size of 512 for the installation,
but the s390-ccw bios tries to boot from a disk with 4096 block size so
far, as long as this patch has not been applied yet (well, it used to work
by accident in the past due to the virtio_assume_scsi() hack that used to
enforce 512 byte sectors on all virtio-block disks, but that hack has been
well removed in commit 5447de2619 to fix other scenarios).

Fixes: 5447de2619 ("pc-bios/s390-ccw/virtio-blkdev: Remove virtio_assume_scsi()")
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2112303
Message-Id: <20220805094214.285223-1-thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-07 12:54:12 +02:00
Richard Henderson
c669f22f1a LoongArch updates:
Store value in SET_FPU_* macros.
   Fix unused variable Werrors in acpi-build.c
   Update xml to match upstream gdb.
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Merge tag 'pull-la-20220805' of https://gitlab.com/rth7680/qemu into staging

LoongArch updates:
  Store value in SET_FPU_* macros.
  Fix unused variable Werrors in acpi-build.c
  Update xml to match upstream gdb.

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* tag 'pull-la-20220805' of https://gitlab.com/rth7680/qemu:
  target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()
  target/loongarch: Update loongarch-fpu.xml
  target/loongarch: update loongarch-base64.xml
  target/loongarch: add gdb_arch_name()
  target/loongarch: Fix GDB get the wrong pc
  hw/loongarch: remove acpi-build.c unused variable 'aml_len'
  target/loongarch: Fix macros SET_FPU_* in cpu.h

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-05 12:55:53 -07:00
Richard Henderson
e0d8bb9800 Merge misc patches
* Display deprecation warnings in -cpu help
  * Fix zerocopy IPv6 handling
  * Clarify platform support policy on minor release/backports
  * Fix closesocket call in error path
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Merge tag 'misc-next-pull-request' of https://gitlab.com/berrange/qemu into staging

Merge misc patches

 * Display deprecation warnings in -cpu help
 * Fix zerocopy IPv6 handling
 * Clarify platform support policy on minor release/backports
 * Fix closesocket call in error path

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* tag 'misc-next-pull-request' of https://gitlab.com/berrange/qemu:
  util/qemu-sockets: Replace the call to close a socket with closesocket()
  target/arm: display deprecation status in '-cpu help'
  target/s390x: display deprecation status in '-cpu help'
  target/i386: display deprecation status in '-cpu help'
  QIOChannelSocket: Add support for MSG_ZEROCOPY + IPV6
  docs: build-platforms: Clarify stance on minor releases and backports

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-05 10:28:09 -07:00
Song Gao
2f149c759f target/loongarch: Update gdb_set_fpu() and gdb_get_fpu()
GDB LoongArch fpu use fcc register, update gdb_set_fpu()
and gdb_get_fpu() to match it.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-6-gaosong@loongson.cn>
2022-08-05 10:02:40 -07:00
Song Gao
d182c39000 target/loongarch: Update loongarch-fpu.xml
Rename loongarch-fpu64.xml to loongarch-fpu.xml and update
loongarch-fpu.xml to match upstream GDB [1]

[1]:https://github.com/bminor/binutils-gdb/blob/master/gdb/features/loongarch/fpu.xml

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-5-gaosong@loongson.cn>
2022-08-05 10:02:40 -07:00
Song Gao
96c3298c0a target/loongarch: update loongarch-base64.xml
Update loongarch-base64.xml to match the upstream GDB [1].

[1]:https://github.com/bminor/binutils-gdb/blob/master/gdb/features/loongarch/base64.xml

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-4-gaosong@loongson.cn>
2022-08-05 10:02:40 -07:00
Song Gao
cd8ef0ed3b target/loongarch: add gdb_arch_name()
Matches bfd/cpu-loongarch.c, bfd_loongarch_arch.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-3-gaosong@loongson.cn>
2022-08-05 10:02:40 -07:00
Song Gao
1fe8ac3511 target/loongarch: Fix GDB get the wrong pc
GDB LoongArch add a register orig_a0, see the base64.xml [1].
We should add the orig_a0 to match the upstream GDB.

[1]: https://github.com/bminor/binutils-gdb/blob/master/gdb/features/loongarch/base64.xml

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220805033523.1416837-2-gaosong@loongson.cn>
2022-08-05 10:02:40 -07:00
Song Gao
4cbadc40b9 hw/loongarch: remove acpi-build.c unused variable 'aml_len'
Fix a compiler warning on openbsd:
../src/hw/loongarch/acpi-build.c:416:12: warning: variable 'aml_len'
set but not used [-Wunused-but-set-variable]
    size_t aml_len = 0;
           ^

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220721040046.3985609-1-gaosong@loongson.cn>
[rth: Removing aml_len in turn makes fadt set but not used.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-05 10:02:07 -07:00
Qi Hu
00952d93e0 target/loongarch: Fix macros SET_FPU_* in cpu.h
The macros SET_FPU_* are used to set corresponding bits of fcsr.
Unfortunately it forgets to set the result and it causes fcsr's
"CAUSE" never being updated. This patch is to fix this bug.

Signed-off-by: Qi Hu <huqi@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220804132450.314329-1-huqi@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-05 08:18:30 -07:00
Bin Meng
e3fdb13e88 util/qemu-sockets: Replace the call to close a socket with closesocket()
close() is a *nix function. It works on any file descriptor, and
sockets in *nix are an example of a file descriptor.

closesocket() is a Windows-specific function, which works only
specifically with sockets. Sockets on Windows do not use *nix-style
file descriptors, and socket() returns a handle to a kernel object
instead, so it must be closed with closesocket().

In QEMU there is already a logic to handle such platform difference
in os-posix.h and os-win32.h, that:

  * closesocket maps to close on POSIX
  * closesocket maps to a wrapper that calls the real closesocket()
    on Windows

Replace the call to close a socket with closesocket() instead.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Daniel P. Berrangé
977c33ba5d target/arm: display deprecation status in '-cpu help'
When the user queries CPU models via QMP there is a 'deprecated' flag
present, however, this is not done for the CLI '-cpu help' command.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Daniel P. Berrangé
738cdc2f6e target/s390x: display deprecation status in '-cpu help'
When the user queries CPU models via QMP there is a 'deprecated' flag
present, however, this is not done for the CLI '-cpu help' command.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Daniel P. Berrangé
5dfa9e8689 target/i386: display deprecation status in '-cpu help'
When the user queries CPU models via QMP there is a 'deprecated' flag
present, however, this is not done for the CLI '-cpu help' command.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Leonardo Bras
5258a7e2c0 QIOChannelSocket: Add support for MSG_ZEROCOPY + IPV6
For using MSG_ZEROCOPY, there are two steps:
1 - io_writev() the packet, which enqueues the packet for sending, and
2 - io_flush(), which gets confirmation that all packets got correctly sent

Currently, if MSG_ZEROCOPY is used to send packets over IPV6, no error will
be reported in (1), but it will fail in the first time (2) happens.

This happens because (2) currently checks for cmsg_level & cmsg_type
associated with IPV4 only, before reporting any error.

Add checks for cmsg_level & cmsg_type associated with IPV6, and thus enable
support for MSG_ZEROCOPY + IPV6

Fixes: 2bc58ffc29 ("QIOChannelSocket: Implement io_writev zero copy flag & io_flush for CONFIG_LINUX")
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Andrea Bolognani
fbf8c96be3 docs: build-platforms: Clarify stance on minor releases and backports
These changes match those made in the following libvirt commits:

  2ac78307af docs: Clarify our stance on backported packages
  78cffd450a docs: Spell out our policy concerning minor releases

Since QEMU's platform support policy is based on libvirt's, it
makes sense to mirror these recent changes made to the latter.

The policy is not altered significantly - we're simply spelling
out some rules that were likely already being implicitly
enforced.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
Richard Henderson
09ed077d7f Pull request trivial branch 20220804
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Merge tag 'trivial-branch-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request trivial branch 20220804

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# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'trivial-branch-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  include/qemu/host-utils.h: Simplify the compiler check in mulu128()
  ppc: Remove redundant macro MSR_BOOK3S_MASK.
  docs/about/removed-features: Move the -soundhw into the right section
  vdpa: Fix file descriptor leak on get features error
  README.rst: fix link formatting

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-04 17:21:13 -07:00
Richard Henderson
846dcf0ba4 Pull request
- Format string portability fix in virtiofsd
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Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

- Format string portability fix in virtiofsd

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# gpg: Signature made Thu 04 Aug 2022 12:02:51 PM PDT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  virtiofsd: Fix format strings

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-04 14:06:17 -07:00
Richard Henderson
0ee33dd0ce ppc patch queue for 2022-08-04:
In this short queue we have a fix in the sam460ex machine where we're
 not storing all GPIO lines in sam460ex_init().
 
 This is not causing problems (as far as we're aware of) at this moment,
 but this is getting in the way of a ppc405 rework we want to do for 7.2,
 so let's fix it now.
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Merge tag 'pull-ppc-20220804' of https://gitlab.com/danielhb/qemu into staging

ppc patch queue for 2022-08-04:

In this short queue we have a fix in the sam460ex machine where we're
not storing all GPIO lines in sam460ex_init().

This is not causing problems (as far as we're aware of) at this moment,
but this is getting in the way of a ppc405 rework we want to do for 7.2,
so let's fix it now.

# -----BEGIN PGP SIGNATURE-----
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# =QrsF
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 04 Aug 2022 11:21:21 AM PDT
# gpg:                using EDDSA key 17EBFF9923D01800AF2838193CD9CA96DE033164
# gpg: Good signature from "Daniel Henrique Barboza <danielhb413@gmail.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 17EB FF99 23D0 1800 AF28  3819 3CD9 CA96 DE03 3164

* tag 'pull-ppc-20220804' of https://gitlab.com/danielhb/qemu:
  hw/ppc: sam460ex.c: store all GPIO lines in mal_irqs[]

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-04 11:47:58 -07:00
Stefan Weil
7b0ca31364 virtiofsd: Fix format strings
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20220804074833.892604-1-sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-08-04 14:44:25 -04:00
Daniel Henrique Barboza
ed021daf2d hw/ppc: sam460ex.c: store all GPIO lines in mal_irqs[]
We're not storing all GPIO lines we're retrieving with
qdev_get_gpio_in() in mal_irqs[]. We're storing just the last one in the
first index:

    for (i = 0; i < ARRAY_SIZE(mal_irqs); i++) {
        mal_irqs[0] = qdev_get_gpio_in(uic[2], 3 + i);
    }
    ppc4xx_mal_init(env, 4, 16, mal_irqs);

mal_irqs is used in ppc4xx_mal_init() to assign the IRQs to MAL:

    for (i = 0; i < 4; i++) {
        mal->irqs[i] = irqs[i];
    }

Since only irqs[0] has been initialized, mal->irqs[1,2,3] are being
zeroed.

This doesn´t seem to trigger any apparent issues at this moment, but
Cedric's QOMification of the MAL device [1] is executing a
sysbus_connect_irq() that will fail if we do not store all GPIO lines
properly.

[1] https://lists.gnu.org/archive/html/qemu-devel/2022-08/msg00497.html

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: BALATON Zoltan <balaton@eik.bme.hu>
Fixes: 706e944206 ("hw/ppc/sam460ex: Drop use of ppcuic_init()")
Acked-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220803233204.2724202-1-danielhb413@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-08-04 15:20:14 -03:00
Thomas Huth
21d4e557e2 include/qemu/host-utils.h: Simplify the compiler check in mulu128()
We currently require at least GCC 7.4 or Clang 6.0 for compiling QEMU.
GCC has __builtin_mul_overflow since version 5 already, and Clang 6.0
also provides this built-in function (see its documentation on this page:
https://releases.llvm.org/6.0.0/tools/clang/docs/LanguageExtensions.html ).
So we can simplify the #if statement here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220721074809.1513357-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-04 13:49:47 +02:00
Yonggang Luo
1e2dd31149 ppc: Remove redundant macro MSR_BOOK3S_MASK.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220728201135.223-1-luoyonggang@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-04 13:48:27 +02:00
Thomas Huth
9878fbf342 docs/about/removed-features: Move the -soundhw into the right section
The note about the removal of '-soundhw' has been accidentally added
to the section of removed "linux-user mode CPUs" ... it should reside
in the section about removed "System emulator command line arguments"
instead.

Fixes: 039a68373c ("introduce -audio as a replacement for -soundhw")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20220802075611.346835-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-04 13:47:12 +02:00
Eugenio Pérez
aed5da45da vdpa: Fix file descriptor leak on get features error
File descriptor vdpa_device_fd is not free in the case of returning
error from vhost_vdpa_get_features. Fixing it by making all errors go to
the same error path.

Resolves: Coverity CID 1490785
Fixes: 8170ab3f43 ("vdpa: Extract get features part from vhost_vdpa_get_max_queue_pairs")

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20220802112447.249436-2-eperezma@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-04 13:46:08 +02:00
Cornelia Huck
9567fc1665 README.rst: fix link formatting
Make the links render correctly.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220803090250.136556-1-cohuck@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-04 13:44:21 +02:00
Richard Henderson
2480f3bbd0 Pull request linux-user 20220803
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Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20220803

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# gpg: Signature made Wed 03 Aug 2022 07:56:03 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  linux-user: Use memfd for open syscall emulation
  linux-user: Do not treat madvise()'s advice as a bitmask
  linux-user/flatload.c: Fix setting of image_info::end_code

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-03 08:32:44 -07:00
Richard Henderson
d2656dd577 Update version for v7.1.0-rc1 release
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-02 20:12:42 -07:00
Richard Henderson
b15bd4532f Fix mips semihosting regression.
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Merge tag 'pull-semi-20220802' of https://gitlab.com/rth7680/qemu into staging

Fix mips semihosting regression.

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# gpg: Signature made Tue 02 Aug 2022 05:57:21 PM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-semi-20220802' of https://gitlab.com/rth7680/qemu:
  target/mips: Advance pc after semihosting exception

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-02 17:59:36 -07:00
Richard Henderson
d44971e725 target/mips: Advance pc after semihosting exception
Delay generating the exception until after we know the
insn length, and record that length in env->error_code.

Fixes: 8ec7e3c53d ("target/mips: Use an exception for semihosting")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1126
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-02 12:34:00 -07:00
Richard Henderson
430a388ef4 Migration fixes pull 2022-08-02
Small migration (and virtiofsd) fixes.
 
 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Merge tag 'pull-migration-20220802c' of https://gitlab.com/dagrh/qemu into staging

Migration fixes pull 2022-08-02

Small migration (and virtiofsd) fixes.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

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# gpg: Signature made Tue 02 Aug 2022 08:50:37 AM PDT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]

* tag 'pull-migration-20220802c' of https://gitlab.com/dagrh/qemu:
  virtiofsd: Disable killpriv_v2 by default
  migration: Define BLK_MIG_BLOCK_SIZE as unsigned long long
  migration: Assert that migrate_multifd_compression() returns an in-range value
  Revert "migration: Simplify unqueue_page()"
  migration: add remaining params->has_* = true in migration_instance_init()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-02 10:03:18 -07:00
Vivek Goyal
a21ba54dd5 virtiofsd: Disable killpriv_v2 by default
We are having bunch of issues with killpriv_v2 enabled by default. First
of all it relies on clearing suid/sgid bits as needed by dropping
capability CAP_FSETID. This does not work for remote filesystems like
NFS (and possibly others).

Secondly, we are noticing other issues related to clearing of SGID
which leads to failures for xfstests generic/355 and generic/193.

Thirdly, there are other issues w.r.t caching of metadata (suid/sgid)
bits in fuse client with killpriv_v2 enabled. Guest can cache that
data for sometime even if cleared on server.

Second and Third issue are fixable. Just that it might take a little
while to get it fixed in kernel. First one will probably not see
any movement for a long time.

Given these issues, killpriv_v2 does not seem to be a good candidate
for enabling by default. We have already disabled it by default in
rust version of virtiofsd.

Hence this patch disabled killpriv_v2 by default. User can choose to
enable it by passing option "-o killpriv_v2".

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <YuPd0itNIAz4tQRt@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-08-02 16:46:52 +01:00
Peter Maydell
4bcb7de072 migration: Define BLK_MIG_BLOCK_SIZE as unsigned long long
When we use BLK_MIG_BLOCK_SIZE in expressions like
block_mig_state.submitted * BLK_MIG_BLOCK_SIZE, this multiplication
is done as 32 bits, because both operands are 32 bits.  Coverity
complains about possible overflows because we then accumulate that
into a 64 bit variable.

Define BLK_MIG_BLOCK_SIZE as unsigned long long using the ULL suffix.
The only two current uses of it with this problem are both in
block_save_pending(), so we could just cast to uint64_t there, but
using the ULL suffix is simpler and ensures that we don't
accidentally introduce new variants of the same issue in future.

Resolves: Coverity CID 1487136, 1487175
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220721115207.729615-3-peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-08-02 16:46:52 +01:00
Peter Maydell
ead34f64f9 migration: Assert that migrate_multifd_compression() returns an in-range value
Coverity complains that when we use the return value from
migrate_multifd_compression() as an array index:
  multifd_recv_state->ops = multifd_ops[migrate_multifd_compression()];

that this might overrun the array (which is declared to have size
MULTIFD_COMPRESSION__MAX).  This is because the function return type
is MultiFDCompression, which is an autogenerated enum.  The code
generator includes the "one greater than the maximum possible value"
MULTIFD_COMPRESSION__MAX in the enum, even though this is not
actually a valid value for the enum, and this makes Coverity think
that migrate_multifd_compression() could return that __MAX value and
index off the end of the array.

Suppress the Coverity error by asserting that the value we're going
to return is within range.

Resolves: Coverity CID 1487239, 1487254
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220721115207.729615-2-peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-08-02 16:46:52 +01:00
Thomas Huth
777f53c759 Revert "migration: Simplify unqueue_page()"
This reverts commit cfd66f30fb.

The simplification of unqueue_page() introduced a bug that sometimes
breaks migration on s390x hosts.

The problem is not fully understood yet, but since we are already in
the freeze for QEMU 7.1 and we need something working there, let's
revert this patch for the upcoming release. The optimization can be
redone later again in a proper way if necessary.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2099934
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220802061949.331576-1-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-08-02 16:46:52 +01:00
Leonardo Bras
df67aa3e61 migration: add remaining params->has_* = true in migration_instance_init()
Some of params->has_* = true are missing in migration_instance_init, this
causes migrate_params_check() to skip some tests, allowing some
unsupported scenarios.

Fix this by adding all missing params->has_* = true in
migration_instance_init().

Fixes: 69ef1f36b0 ("migration: define 'tls-creds' and 'tls-hostname' migration parameters")
Fixes: 1d58872a91 ("migration: do not wait for free thread")
Fixes: d2f1d29b95 ("migration: add support for a "tls-authz" migration parameter")
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Message-Id: <20220726010235.342927-1-leobras@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-08-02 16:46:52 +01:00
Richard Henderson
0399521e53 Block layer patches
- libvduse: Coverity fixes
 - hd-geometry: Fix ignored bios-chs-trans setting
 - io_uring: Fix compiler warning (missing #include)
 - main loop: add missing documentation links to GS/IO macros
 - qemu-iotests: Discard stderr when probing devices
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Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- libvduse: Coverity fixes
- hd-geometry: Fix ignored bios-chs-trans setting
- io_uring: Fix compiler warning (missing #include)
- main loop: add missing documentation links to GS/IO macros
- qemu-iotests: Discard stderr when probing devices

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# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of git://repo.or.cz/qemu/kevin:
  main loop: add missing documentation links to GS/IO macros
  qemu-iotests: Discard stderr when probing devices
  hw/block/hd-geometry: Do not override specified bios-chs-trans
  libvduse: Pass positive value to strerror()
  libvduse: Replace strcpy() with strncpy()
  libvduse: Fix the incorrect function name
  block/io_uring: add missing include file

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-02 06:52:05 -07:00
Rainer Müller
5b63de6b54 linux-user: Use memfd for open syscall emulation
For certain paths in /proc, the open syscall is intercepted and the
returned file descriptor points to a temporary file with emulated
contents.

If TMPDIR is not accessible or writable for the current user (for
example in a read-only mounted chroot or container) tools such as ps
from procps may fail unexpectedly. Trying to read one of these paths
such as /proc/self/stat would return an error such as ENOENT or EROFS.

To relax the requirement on a writable TMPDIR, use memfd_create()
instead to create an anonymous file and return its file descriptor.

Signed-off-by: Rainer Müller <raimue@codingfarm.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220729154951.76268-1-raimue@codingfarm.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-02 15:44:27 +02:00
Emanuele Giuseppe Esposito
21b1d97459 main loop: add missing documentation links to GS/IO macros
If we go directly to GLOBAL_STATE_CODE, IO_CODE or IO_OR_GS_CODE
definition, we just find that they "mark and check that the function
is part of the {category} API".
However, ther is no definition on what {category} API is, they are
in include/block/block-*.h
Therefore, add a comment that refers to such documentation.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220609122206.1016936-1-eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 12:02:17 +02:00
Cole Robinson
e13fe274bf qemu-iotests: Discard stderr when probing devices
qemu-iotests fails in the following setup:

  ./configure --enable-modules --enable-smartcard \
      --target-list=x86_64-softmmu,s390x-softmmu
  make
  cd build
  QEMU_PROG=`pwd`/s390x-softmmu/qemu-system-s390x \
      ../tests/check-block.sh qcow2
  ...
  --- /home/crobinso/src/qemu/tests/qemu-iotests/127.out
  +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/127.out.bad
  @@ -1,4 +1,18 @@
   QA output created by 127
  +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach
  ...
  --- /home/crobinso/src/qemu/tests/qemu-iotests/267.out
  +++ /home/crobinso/src/qemu/build/tests/qemu-iotests/scratch/267.out.bad
  @@ -1,4 +1,11 @@
   QA output created by 267
  +Failed to open module: /home/crobinso/src/qemu/build/hw-usb-smartcard.so: undefined symbol: ccid_card_ccid_attach

The stderr spew is its own known issue, but seems like iotests should
be discarding stderr in this case.

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:55:51 +02:00
Lev Kujawski
fd8a68ad68 hw/block/hd-geometry: Do not override specified bios-chs-trans
For small disk images (<4 GiB), QEMU and SeaBIOS default to the
LARGE/ECHS disk translation method, but it is not uncommon for other
BIOS software to use LBA in these cases as well.  Some operating
system boot loaders (e.g., NT 4) do not handle LARGE translations
outside of fixed configurations.  See, e.g., Q154052:

"When starting an x86 based computer, Ntdetect.com retrieves and
stores Interrupt 13 information. . . If the disk controller is using a
32 sector/64 head translation scheme, this boundary will be 1 GB. If
the controller uses 63 sector/255 head translation [AUTHOR: i.e.,
LBA], the limit will be 4 GB."

To accommodate these situations, hd_geometry_guess() now follows the
disk translation specified by the user even when the ATA disk geometry
is guessed.

hd_geometry_guess():
* Only set the disk translation when translation is AUTO.
* Show the soon-to-be active translation (*ptrans) in the trace rather
  than what was guessed.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/56
Buglink: https://bugs.launchpad.net/qemu/+bug/1745312

Signed-off-by: Lev Kujawski <lkujaw@member.fsf.org>
Message-Id: <20220707204045.999544-1-lkujaw@member.fsf.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:21:56 +02:00
Xie Yongji
630179b7f7 libvduse: Pass positive value to strerror()
The value passed to strerror() should be positive.
So let's fix it.

Fixes: Coverity CID 1490226, 1490223
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-4-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:01:42 +02:00
Xie Yongji
d9cf16c0be libvduse: Replace strcpy() with strncpy()
Coverity reported a string overflow issue since we copied
"name" to "dev_config->name" without checking the length.
This should be a false positive since we already checked
the length of "name" in vduse_name_is_invalid(). But anyway,
let's replace strcpy() with strncpy() (as a general library,
we'd like to minimize dependencies on other libraries, so we
didn't use g_strlcpy() here) to fix the coverity complaint.

Fixes: Coverity CID 1490224
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-3-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:01:41 +02:00
Xie Yongji
e7156ff7cb libvduse: Fix the incorrect function name
In vduse_name_is_valid(), we actually check whether
the name is invalid or not. So let's change the
function name to vduse_name_is_invalid() to match
the behavior.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-2-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:01:41 +02:00
Jinhao Fan
77e3f038af block/io_uring: add missing include file
The commit "Use io_uring_register_ring_fd() to skip fd operations" uses
warn_report but did not include the header file "qemu/error-report.h".
This causes "error: implicit declaration of function ‘warn_report’".
Include this header file.

Fixes: e2848bc574 ("Use io_uring_register_ring_fd() to skip fd operations")
Signed-off-by: Jinhao Fan <fanjinhao21s@ict.ac.cn>
Message-Id: <20220721065645.577404-1-fanjinhao21s@ict.ac.cn>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-08-02 11:01:24 +02:00
Richard Henderson
9b00d27901 Seventh RISC-V PR for QEMU 7.1
This is a second PR to go in for RC1. It fixes a bug we have had
 for awhile, but it's a simple fix so let's pull it in for RC1.
 
 * linux-user/riscv: Align signal frame to 16 bytes
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Merge tag 'pull-riscv-to-apply-20220802' of github.com:alistair23/qemu into staging

Seventh RISC-V PR for QEMU 7.1

This is a second PR to go in for RC1. It fixes a bug we have had
for awhile, but it's a simple fix so let's pull it in for RC1.

* linux-user/riscv: Align signal frame to 16 bytes

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# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [undefined]
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* tag 'pull-riscv-to-apply-20220802' of github.com:alistair23/qemu:
  linux-user/riscv: Align signal frame to 16 bytes

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-01 19:05:10 -07:00
Richard Henderson
1eaa63429a linux-user/riscv: Align signal frame to 16 bytes
Follow the kernel's alignment, as we already noted.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1093
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220729201942.30738-1-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-08-02 08:56:49 +10:00